Root Root 2.1 OTA and retain 1.4 PRI

Mr. Monkey · Aug 31, 2010

So I just downgraded my 2.2 to 2.1 OTA. I do not want to used Unrevoked at all. So I am going to use this guide which is the same one I used to root my last 2.1.1.

My question is... that guide uses an older PC36IMG that downgrades to 1.34 PRI, right? I'm trying to find a way that I can keep my 1.4 PRI that I have right now. Or maybe I am confused and my PRI wont be touched.

Does anyone know how to keep my 1.4??

ETA: Right now I am on 2.1.1 with 1.4 PRI.

Wile-E · Aug 31, 2010

I just rooted this morning after updating to 1.4. I checked and still have 1.4 installed after rooting and flashing to Fresh 3.2

Mr. Monkey · Aug 31, 2010

Wile-E said:
I just rooted this morning after updating to 1.4. I checked and still have 1.4 installed after rooting and flashing to Fresh 3.2

Did you use unrevoked forever?

Wile-E · Aug 31, 2010

Yes. With the exception of a few difficulties/oddities, I it went smoothly.

If you are interested, my trouble spots were as follows:

1) The Win XP computer I was planning to use would not transfer the files to the SD card initially. It would say "0 bytes" Switched to a Win 7 pc and that solved that (I think it was due to the age of my XP system, not the OS itself)

2) I did NOT need to toggle the airplane mode

3) I forgot about the modified hboot drivers. Just needed to install.

The video that is linked from the XDA instructions (How to Root the HTC EVO 4G with Froyo 2.2 [Video Walkthrough] | The Droid Demos )was immeasurably helpful, as well as all of the comments made here. I am deeply grateful to everyone who contributed to the effort, whether programing or through their experiences.

pb2 · Aug 31, 2010

How do you downgrade to 2.1?

I have 2.2 on my HTC EVO (updated OTA) and need to go back to 2.1. This is primarily because 2.2 doesn't deal with client certificates properly and as a result I can no longer get my work e-mail.

Thanks,
PB

Mr. Monkey · Aug 31, 2010

pb2 said:
How do you downgrade to 2.1?

I have 2.2 on my HTC EVO (updated OTA) and need to go back to 2.1. This is primarily because 2.2 doesn't deal with client certificates properly and as a result I can no longer get my work e-mail.

Thanks,
PB

This guide will take you back to 2.1. Just go up until the part that explains to go to unrevoked.com.

KewlKat007 · Aug 31, 2010

Hey guys I did root my phone using that guide Mr. Monkey posted but how do I know(currently running CM6) what number my PRI is? I know it doesn't show up in the settings of CM6.

I remember updating the PRI and such before I did all this root stuff.

Mr. Monkey · Sep 1, 2010

After rooting my phone I noticed it took me back to PRI 1.34. Not a huuuuge deal, but I thought if I could leave it at 1.4 it would be better.

My guess is you're at 1.34 with me. I can't find it in settings either.

Root Root 2.1 OTA and retain 1.4 PRI

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